Content. Section III History of Chemistry

Section III History of Chemistry

Unit 1 Alchemy and its Purposes……………………………………………6

Unit 2 The Development of Periodic Table………………………………..14

Unit 3 Great Сhemists……………………………………………………...25

Section IV Materials: well known and unknown

Unit 1 Semiconductors……………………………………………….……..36

Unit 2 Ceramics……………………………………………………………...44

Unit 3 Polymers………………………………………………………………52

Unit 4 Wonderful Alloys……………………………………………………..63

Section V The Chemical News

Unit 1 Superdense Water………………………………………………….68

Unit 2 Laser in Chemistry…………………………………………………..77

Unit 3 Lubricant Materals…………………………………………………..85

Unit 4 Composite Materials…………………………………………………92

Библиография ………………………………………………………………109

Section III From the History of Chemistry

Unit I Alchemy and Its Purposes

Grammar: The Infinitive and its Functions

Text: Mysteries of Alchemy

Translate and memorize the following words.

alchemy	sublimate	distinctive
dye	distil	precious
pursuit	slow down	essential
procedure	speed up	liberate
extract	transmute into	attain
elixir	diffuse to/through	enlighten
tincture	evolve	be associated with
spread to	involve	undertake

2. Read the following words and define the parts of speech. Mind the stress:

alchemy – alchemist – alchemical; essence – essential – essentially; transmute – transmutation; distil – distillate – distillation; diffuse – diffusion; an extract – to extract – extractive – extraction; enlightenment – enlighten; long – prolong – prolonging – longevity;